I'm not sure if this is an April fools joke or not... as Matt posted it on March 31. My locale however is Australia which makes it April 1. So am I right to assume that Matt (as the fine global citizen that he is) launched his April fools joke early for our benefit in this part of the globe? ;)
If you go to the site it has an April copyright. He's a Google engineer advertising auto seo. It's very probably a joke.
I hope HN doesn't devolve into uselessness on April 1. Please let there be at least one site that is not completely and totally worthless on April 1.